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Most Important Selected Qs for JEE AdvancedMathematicsQuadratic Equation

Number of different values of x satisfying the equation (x^2+x-2 )^3+ (2 x^2-x-1 )^3=27 (x^2-1 )^3 are-

Options

  1. A4
  2. B6
  3. C2
  4. Dinfinite

Correct answer

A. 4

Step-by-step solution

aligned & (x^2+x-2 ) (2 x^2-x-1 ) (x^2-1 )=0 & x=-2,1,1,- 1 2 , 1,-1=- 1 2 ,-1,1,-2 aligned

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